/Engine/Source/Runtime/Engine/Public/WorldPartition/HLOD/HLODBuilder.h
Build an HLOD representation of the input actors. Components returned by this method needs to be properly outered & assigned to your target (HLOD) actor.
[TArray](API\Runtime\Core\Containers\TArray)< [UActorComponent](API\Runtime\Engine\Components\UActorComponent) * > Build ( const [FHLODBuildContext](API\Runtime\Engine\WorldPartition\HLOD\FHLODBuildContext) & InHLODBuildContext ) const